JoinGG

Measured, not estimated

How many people still play Alien Swarm?

0 players are on the 6 Alien Swarm servers JoinGG is reaching right now, of 6 listed.

Across the 145 hours covered well enough to compare, that count has run between 0 and 18.

Every figure on this page was measured by JoinGG. We ask all 6 Alien Swarm servers listed here every hour, over Valve's A2S status query (the same request the in-game server browser makes), and write down what each one answers. Nothing is scraped from another site, modelled, or extrapolated to servers we do not list — which is also the limit of it: these are the Alien Swarm servers on JoinGG, so read the counts as a large sample of public community servers rather than as a census of the game.

Last sweep . This page rebuilds every five minutes.

0
Players connected

reported by the servers themselves

6
Servers answering

0 listed but silent

6
Servers listed

every one queried directly

0%
Slots used

of 87 slots those servers reported

These figures rest on 870 status checks across 145 measured hours, of which 145 cover enough of the Alien Swarm list to compare with the others. Readings are kept for 7 days, so this page gets deeper as they accumulate rather than longer. By players on listed servers, Alien Swarm is the 26th busiest of the 32 games JoinGG measures.

This is a small sample — 6 servers on Alien Swarm. The counts below are still measurements rather than estimates, but a population read off 6 servers moves when one operator reboots, so treat it as what these servers are doing rather than as what the game is doing. The whole network is the wider view.

Players on Alien Swarm servers, hour by hour

870 status checks · 145 hours measured

Sun 08:00 UTC — 1 players on 6 serversSun 09:00 UTC — 0 players on 6 serversSun 11:00 UTC — 1 players on 6 serversSun 12:00 UTC — 6 players on 6 serversSun 13:00 UTC — 3 players on 6 serversSun 14:00 UTC — 7 players on 6 serversSun 15:00 UTC — 2 players on 6 serversSun 16:00 UTC — 6 players on 6 serversSun 18:00 UTC — 10 players on 6 serversSun 19:00 UTC — 10 players on 6 serversSun 20:00 UTC — 12 players on 6 serversSun 21:00 UTC — 4 players on 6 serversSun 22:00 UTC — 4 players on 6 serversSun 23:00 UTC — 2 players on 6 serversMon 00:00 UTC — 4 players on 6 serversMon 01:00 UTC — 6 players on 6 serversMon 03:00 UTC — 9 players on 6 serversMon 04:00 UTC — 8 players on 6 serversMon 05:00 UTC — 6 players on 6 serversMon 06:00 UTC — 0 players on 6 serversMon 07:00 UTC — 0 players on 6 serversMon 08:00 UTC — 1 players on 6 serversMon 09:00 UTC — 0 players on 6 serversMon 10:00 UTC — 0 players on 6 serversMon 12:00 UTC — 1 players on 6 serversMon 13:00 UTC — 0 players on 6 serversMon 14:00 UTC — 0 players on 6 serversMon 15:00 UTC — 2 players on 6 serversMon 16:00 UTC — 11 players on 6 serversMon 17:00 UTC — 13 players on 6 serversMon 18:00 UTC — 6 players on 6 serversMon 20:00 UTC — 12 players on 6 serversMon 21:00 UTC — 16 players on 6 serversMon 22:00 UTC — 12 players on 6 serversMon 23:00 UTC — 12 players on 6 serversTue 00:00 UTC — 11 players on 6 serversTue 01:00 UTC — 12 players on 6 serversTue 02:00 UTC — 4 players on 6 serversTue 04:00 UTC — 0 players on 6 serversTue 05:00 UTC — 0 players on 6 serversTue 06:00 UTC — 0 players on 6 serversTue 07:00 UTC — 0 players on 6 serversTue 08:00 UTC — 1 players on 6 serversTue 10:00 UTC — 0 players on 6 serversTue 11:00 UTC — 0 players on 6 serversTue 12:00 UTC — 7 players on 6 serversTue 13:00 UTC — 0 players on 6 serversTue 14:00 UTC — 4 players on 6 serversTue 15:00 UTC — 8 players on 6 serversTue 17:00 UTC — 6 players on 6 serversTue 18:00 UTC — 9 players on 6 serversTue 19:00 UTC — 9 players on 6 serversTue 20:00 UTC — 15 players on 6 serversTue 21:00 UTC — 13 players on 6 serversTue 22:00 UTC — 1 players on 6 serversTue 23:00 UTC — 0 players on 6 serversWed 01:00 UTC — 4 players on 6 serversWed 02:00 UTC — 7 players on 6 serversWed 03:00 UTC — 8 players on 6 serversWed 04:00 UTC — 7 players on 6 serversWed 05:00 UTC — 6 players on 6 serversWed 06:00 UTC — 0 players on 6 serversWed 07:00 UTC — 0 players on 6 serversWed 09:00 UTC — 0 players on 6 serversWed 10:00 UTC — 0 players on 6 serversWed 11:00 UTC — 2 players on 6 serversWed 12:00 UTC — 2 players on 6 serversWed 13:00 UTC — 1 players on 6 serversWed 14:00 UTC — 0 players on 6 serversWed 15:00 UTC — 7 players on 6 serversWed 17:00 UTC — 6 players on 6 serversWed 18:00 UTC — 11 players on 6 serversWed 19:00 UTC — 12 players on 6 serversWed 20:00 UTC — 16 players on 6 serversWed 21:00 UTC — 14 players on 6 serversWed 22:00 UTC — 9 players on 6 serversThu 00:00 UTC — 0 players on 6 serversThu 01:00 UTC — 0 players on 6 serversThu 02:00 UTC — 7 players on 6 serversThu 03:00 UTC — 4 players on 6 serversThu 04:00 UTC — 6 players on 6 serversThu 05:00 UTC — 5 players on 6 serversThu 06:00 UTC — 4 players on 6 serversThu 08:00 UTC — 8 players on 6 serversThu 09:00 UTC — 0 players on 6 serversThu 10:00 UTC — 0 players on 6 serversThu 11:00 UTC — 0 players on 6 serversThu 12:00 UTC — 3 players on 6 serversThu 13:00 UTC — 0 players on 6 serversThu 15:00 UTC — 0 players on 6 serversThu 16:00 UTC — 4 players on 6 serversThu 17:00 UTC — 7 players on 6 serversThu 18:00 UTC — 12 players on 6 serversThu 19:00 UTC — 12 players on 6 serversThu 20:00 UTC — 6 players on 6 serversThu 22:00 UTC — 18 players on 6 serversThu 23:00 UTC — 6 players on 6 serversFri 00:00 UTC — 0 players on 6 serversFri 01:00 UTC — 0 players on 6 serversFri 02:00 UTC — 0 players on 6 serversFri 03:00 UTC — 0 players on 6 serversFri 05:00 UTC — 0 players on 6 serversFri 06:00 UTC — 0 players on 6 serversFri 07:00 UTC — 0 players on 6 serversFri 08:00 UTC — 0 players on 6 serversFri 09:00 UTC — 0 players on 6 serversFri 10:00 UTC — 3 players on 6 serversFri 12:00 UTC — 0 players on 6 serversFri 13:00 UTC — 0 players on 6 serversFri 14:00 UTC — 2 players on 6 serversFri 15:00 UTC — 6 players on 6 serversFri 16:00 UTC — 6 players on 6 serversFri 17:00 UTC — 11 players on 6 serversFri 18:00 UTC — 9 players on 6 serversFri 19:00 UTC — 17 players on 6 serversFri 20:00 UTC — 4 players on 6 serversFri 22:00 UTC — 0 players on 6 serversFri 23:00 UTC — 0 players on 6 serversSat 00:00 UTC — 0 players on 6 serversSat 01:00 UTC — 0 players on 6 serversSat 02:00 UTC — 0 players on 6 serversSat 03:00 UTC — 0 players on 6 serversSat 05:00 UTC — 0 players on 6 serversSat 06:00 UTC — 0 players on 6 serversSat 07:00 UTC — 0 players on 6 serversSat 08:00 UTC — 4 players on 6 serversSat 09:00 UTC — 0 players on 6 serversSat 11:00 UTC — 5 players on 6 serversSat 12:00 UTC — 8 players on 6 serversSat 13:00 UTC — 0 players on 6 serversSat 14:00 UTC — 0 players on 6 serversSat 15:00 UTC — 5 players on 6 serversSat 17:00 UTC — 6 players on 6 serversSat 18:00 UTC — 9 players on 6 serversSat 19:00 UTC — 7 players on 6 serversSat 20:00 UTC — 10 players on 6 serversSat 21:00 UTC — 10 players on 6 serversSat 23:00 UTC — 9 players on 6 serversSun 00:00 UTC — 0 players on 6 serversSun 01:00 UTC — 0 players on 6 serversSun 02:00 UTC — 1 players on 6 serversSun 03:00 UTC — 0 players on 6 serversSun 05:00 UTC — 2 players on 6 serversSun 06:00 UTC — 0 players on 6 serversSun 07:00 UTC — 2 players on 6 servers
Sun 08:00 UTCSun 07:00 UTC
Busiest hour measured
18 at Thu 22:00 UTC
Quietest hour measured
0 at Sun 09:00 UTC
Latest sweep
2 players
Hours plotted
145 of 145

The other player count

0
Players here

on the 6 servers JoinGG reached

40
In game (Valve)

everyone running it anywhere, per Steam

These two count different things

Players here is ours: people connected to the Alien Swarm servers JoinGG lists, counted by asking each server. In game (Valve) is Steam's live count of everyone running Alien Swarm anywhere — official matchmaking, single-player, community servers and idle menus included. Neither is a subset of the other that we can compute: our list is not every community server in existence, and Valve's total is not limited to multiplayer. So both are printed and neither is divided by the other.

Valve's figure comes from the Steam Web API and is cached for an hour, so it can lag ours by up to that much.

Alien Swarm player counts — the questions

Is Alien Swarm still alive in 2026?
Not on the servers we can see. 0 players are on the 6 Alien Swarm servers JoinGG is reaching right now, of 6 listed. That is a statement about the 6 listings on JoinGG, which is not every Alien Swarm server in the world — but it is what we measured.
When is Alien Swarm busiest?
Around 19:00 UTC. Averaged over 6 days of readings, that hour carries about 11 players across the Alien Swarm servers listed here.
How many Alien Swarm servers are there?
6 Alien Swarm servers are listed on JoinGG, and 6 of them answered the last status query.
Why is this different from Steam's Alien Swarm player count?
They measure different populations. Steam counts everybody running Alien Swarm anywhere right now — official matchmaking, single-player, community servers and idle menus — and reports 40. We count people connected to the 6 Alien Swarm servers we reached, which is 0. Neither figure is a subset of the other that we can compute, so both are printed and neither is divided by the other.
How is this counted?
Every figure on this page was measured by JoinGG. We ask all 6 Alien Swarm servers listed here every hour, over Valve's A2S status query (the same request the in-game server browser makes), and write down what each one answers. Nothing is scraped from another site, modelled, or extrapolated to servers we do not list — which is also the limit of it: these are the Alien Swarm servers on JoinGG, so read the counts as a large sample of public community servers rather than as a census of the game.

Readings are kept for 7 days and pruned by the poller, so this page describes the last week rather than all time — it gets deeper as readings accumulate rather than longer. Hours are measured in UTC and shown in your own clock; hover any of them to read the UTC figure behind it. The answers above stay in UTC, because each is also published as structured data for search engines, where a reader’s zone means nothing.

How many people still play the others

Every game JoinGG measures with enough servers behind it to publish, busiest first. The number on each is the players we can see on its listed servers right now.

Minecraft45,828FiveM31,320Counter-Strike 1.68,691Counter-Strike: Source3,651Team Fortress 22,189Garry's Mod1,901Counter-Strike 21,806Counter-Strike: Global Offensive580Left 4 Dead 2388Day of Defeat385Half-Life291Day of Defeat: Source285Counter-Strike: Condition Zero267Team Fortress Classic238Half-Life 2: Deathmatch127Natural Selection77Insurgency (2014)71Left 4 Dead48Rust44Zombie Panic! Source38Space Engineers257 Days to Die21Fortress Forever12Insurgency (Source)0